I guess I got two special ones because none of the two I have had did this. They got fed MC oil exclusively because, I wasn't having any problems, why experiment?
ZDDP is a recognized additive that used to be used more commonly in oil formulations for 70+ years so, it has a legit history. It is still widely used in stationary engines and such, as a wear reducer. It's a toxic heavy metal and as such, has environmental impacts and that's why it's disappearing from regular motor oils. That and the fact modern engines are built t a higher quality standard, making this stuff less necessary.
2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto tune, 100 shot on BBR tune, best et: 11.38 at 120.85
2012 GT, Candy Red, Brembo, 3.73, Tech, Comfort, etc. Procal tune, Roush upper, UMI LCAs, Steeda red bracket, GT500s, 28X10X16 Hoosier slicks, best et: 11.91 at 115.23 RIP